package com.demo.dao;

import com.demo.entity.po.User;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

/**
 * @author simon
 * @date 2019/5/5 14:46
 * @copyright:
 * @modifier
 * @motto a no talent, people who have to study hard
 */
@Mapper
public interface UserDao {

    User findById(@Param("userId") String userId);
}
